I'm not convinced that's part of that Stormtrooper's uniform. The color has a bluish tint to it that doesn't match the white of the armor. I'm inclined to believe that's an object or one of the people of the settlement draped in a cloth, and that the Stormtrooper is simply standing behind it/them.
– vynsaneSep 21 '18 at 13:32

4

@TheLethalCarrot Given the physical requirements necessary for a stable firing stance without a twisted body, I'd say the real muppet was the costume designer who put the knee pad on the wrong leg...
– ChronocidalSep 21 '18 at 13:49

3

@MarkRogers Was discussed in a now deleted answer, doesn't appear to be her. She has a black cape which generally falls over her left shoulder. The stormtrooper in the image also very clearly looks to be wearing white rather than chrome. And "looking closer, the faceplate style is wrong, too".
– TheLethalCarrotSep 21 '18 at 14:32

2 Answers
2

That's not a cape on the stormtrooper, that's someone closer to the camera.

Note that the "cape" is not as out of focus as the trooper, indicating a different distance from the camera. And if you look, there's a distinct difference in colour: the light blue terminates abruptly against the white of the armour. Further, there are two projections out at either side.

What you are looking at is someone wearing a light blue cloak over a grayish-brown top who is kneeling and slightly bent over. They have their arms raised and bent, just as the other prisoners in the scene do, but because they're bent over their forearms are more parallel to the ground (and thus not as obvious from that angle).

Here is a zoomed in view:

Note the trooper on the left: blaster in their right hand, and their left hand obviously on the shoulder of the kneeling person.

This (00:06:22) appears to be the same scene viewed from a slightly different angle, possibly a second take(?). In it we see a First Order stormtrooper throwing a villager to the ground in front of him. The villager is wearing a voluminous grey/blue jacket (or possibly a blue dress) that billows slightly.

Since we don't see any other cape-wearing stormtroopers exiting the shuttles, my instinct is that this isn't a cape but just something that was in front of the trooper at the moment the picture was taken.